holley



.EEERS, PHOTO-LITHOGRAPNER. VWASHINGTON, D, C.

(No Model.)

L nu Ylm H W LD. L0 0G, H T .e Lm -B Aw nu B UNITED. STATES PATENT GEEIGE.

ALEXANDER L.` HOLLEY, OFPBROOKLYN, NEW YORK.

BESSE MER CONVERTER.

SPECIFICATION forming part of Letters Patent No. 240,714, dated .April 26, 1881. Application tiled June 17, 1880. (No model.)

To all whom 'it mag/.concern Beit known. that 1, ALEXANDER LEMAN` HOLLEY, of the city of Brooklyn, county ot' Kings, and State of NewYork, temporarily rc-. siding at the Hotel `de Franceet de Bath, in the city of Paris, in. the Republic ot' France, have invented a certain new and useful Improvement in Bessemer Converters, of which the following is a specification.

The ordinary vessel or converter for refining crude iron by the Bessemer process consists of an iron shell, which contains the refractory lining and a bottom,77 whichr contains the tuyeres and tuyereboX. To` the shelltwo trunnions are permanently secured, by means of which the converter is supported, rotated, and supplied with blast. As the tuyeres are rapidly ldestroyed d urng tion the bottom is usually made removable, so that a repaired bottom can be quickly substituted. The lining of the shell is more durable; but when it is made of lime or other materials which require frequent repairs it is necessary to change the lining as well as the bottom with celerity, so that the operations of refining may go on without delay. For this purpose the entire converter, with its truunions, may be lifted out of its seat and carried away for repairs by means of a traveling crane, and a repaired converter may be substituted 5 but the apparatus for this purpose is costly, and much time and labor are necessary in removing pillow-block caps and air-connections, and in transporting and accurately placing the converter.

In Letters Patent No. 104,592, granted to me the 21st day of June, 1870, I described a mode of applying to Bessemer converters linings previously prepared in sections within metallic shells, so that each section'of lining, with its containing shell, might be shipped within the main shell or body oi the converter and there held by set-screws.

My present invention differs radically from the above, in that it provides a way by which a complete converter-shell may be removed from its trunnions for repairs and immediately `replaced. by a new one without disturbing the trunnions in their bearings.

My improvement consists in constructing the trunnions,

and a frame or ring connecting the refining operay instead of the wholeconverter the delay and i labor ot' removing and repairing t-hetrunnious, pillow-block caps, and avoided.

I make the trunnion-ring of the converter either of forgedlor cast iron or steel. I prefer to cast the ring, the trunnions, and a partot' the air-pipein one solid piece, and to strengthen this by a wroughtiron lining. Iinake the shell smaller in maximum exterior diameter than the interior of the trunnion-ring, so that the former will readily slip into the latter. I prefer to leave a space ot' about an inch between the ring and the shell, to allow for the distortion of the latter by heat. I temporarily secure the shell to the ring for service by means of brackets and Cotter-bolts that can be readily disconnected, or in any convenient or suitable manner. I prefer to remove the shell with its nose down, so that the nose part can be readily repaired. The bottom may be removed with the shell; but I prefer to remove the bottom by one ofthe usual methods before removing the shell. The shell may be hoisted out ot' the trunnion-rin g or pulled out laterally 5 but I prefer to lower it upon a car. I therefore place the trunnion-ring at such a height above the door upon which the shell is to be repaired that the shell can be lowered out ofthe ring and removed laterally on a car. A hydraulic lift under the converter may either lower the shell upon the car or it may raise the car up to the shell and lower both together. The car may then be drawn to the place where the lining of the shell is to be repaired, and here the shell may, if desired, be lifted into a mounted trunnion-ring, by which it may be rotated to facilitate repairs.

One form of my invention is shown by the drawings forming a part of this specification.

The bottom J ofthe converter D, Figure 4, is removable in the usual manner. When the bottom is'removed, the shell maybe lowered so as to pass out under the beam A B C on the the air-connections are car L, as shown by the dotted lines K' K. The converter is preferably hung under the beam, so as not to place its center inconveniently high above the general iioor E.

Fig. 5 shows the trunnion-ring F and the shell at the dotted line H H. The shell :is shown dropped out of the trunnion-ring upon the car L L by the lines Gr G. l

Fig. 3 is a plan of the-car L. To remove a shell I prefer to run the car L upon the table M of a hydraulic lift, and to raise it by the lift to the position shown by the dotted lines L L', Where it comes in contact with suitable lugs N N on the shell. The cotters are then knocked out of the bolts P P, Fig. 4, releasing the shell from lthe trunnion-ring, when the car, bearing the shell, may be lowered and run out to the place where the lining is to be repaired.

Figs. 1 and 2 show, respectively, a vertical and cross section of the trnnnion-rin g and part of the shell. The shell Q, by means of the brackets U, bears upon the trunnion-rin g when the mouth of the shell is up. When the month is down the shell is held in the trunnion-ring by the Cotter-bolts P. (See also P P, Fig. 4.) The trnnnion-ring is a cast-iron hoop, S, and a Wrought-iron lining, R. ledges V may be used to keep the shell from moving laterally in the ring.

Fig. 6 is a plan of an ordinary Bessemer 3o plant, showing the converters W W and the ingoia-pit.

A shell removed for repairs may be run out upon the turn-table Y, and thence to the position A a, after Which a repaired shell, standing 3 5 at Z, may be rnn in and attached to the trunnion-ring. I

Trunnion-rings may also be mounted at Z Z, by means of which the shells coming out for repairs may be turned either end or side up, 4o as desired.

What I claim, and desire to secure by Letters Patent, is-

1. A Bessemer converter having its main body or shell detachably connected to and 4 5 readily separable from the trunnions, so that the said shell may be removed for repair or relining Without disturbing the trunnions, substantially as described.

2. The combination of trunnion-band F, con- 5o verter-shell D, supportin g-ring, flan ge orbrackets U, and Cotter-bolts P, substantially as and for the purposes set forth.

A. L. HOLLEY.

Witnesses:

L. G. LAUREAU, LENoX SMITH. 

